[jdk21u-dev] RFR: 8329545: [s390x] Fix garbage value being passed in Argument Register

[Sidraya Jayagond]

Hi all,

This pull request contains a backport of commit e0fd6c4c from the openjdk/jdk repository.

The commit being backported was authored by Sidraya Jayagond on 10 Apr 2024 and was reviewed by Amit Kumar and Martin Doerr.

Thanks!

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Commit messages:
 - Backport e0fd6c4c9e30ef107ea930c8ecc449842ae4b8d4

Changes: https://git.openjdk.org/jdk21u-dev/pull/492/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=492&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329545
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/492.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/492/head:pull/492

PR: https://git.openjdk.org/jdk21u-dev/pull/492